[I’m sure you’ll invent something better and show us straight away. (“Some days, the web feels like 5 people trying to make something; 5k people turning it into a list; and 500MM people saying, “FAIL.” —Merlin Mann) –J.]

There are several good general purpose 3D apps out there, but only one good 2D app.

I’m all for 3D in Photoshop, but I think there are several 2D that are more important to focus on.

There are several pixel level inaccuracies that have been with Photoshop for a long time that I’ve given up hope on ever being fixed. Several existing tools could be sped up and tweaked to be a lot more useful, often with GPU power.